tailieunhanh - Foundation Silverlight 3 Animation- P16

Foundation Silverlight 3 Animation- P16: Silverlight has really come a long way since I started using it. It’s kind of interesting to look back a mere two years (roughly) and think about how the workflow has changed. Of even more interest is the staggering speed at which new features are being added. In the time I’ve been using Silverlight, it has grown from a somewhat limited toolset to an ever-more-impressive technology that has really started to come into its own. | PARTICLE SYSTEMS We then talked about how forces can be applied between particles. You saw examples of how particles can gravitate toward one another colliding and bouncing and also how springing behavior can be used to create interesting organic-looking bunches of particles. We then closed out the chapter by looking at a way to visualize the relationship between particles with lines creating a nice-looking particle node garden based on springing behavior. In the next chapter you re going to learn how to create Silverlight-based virtual reality objects. You ll learn how the SLVR engine works and how you can implement virtual reality objects in your own Silverlight applications. 431 Chapter 11 SILVERLIGHT VR SLVR OBJECTS In this chapter we ll talk about how to use Silverlight to display virtual reality VR objects. Everybody s seen this type of object the image loads and as you use the mouse to drag inside the window the object rotates with the mouse allowing a more interactive experience with the object being displayed. You ll also see something you re not likely to find in any other book. I m going to show you how to use Silverlight to travel through time. Yes really. There are two fundamental approaches to creating a VR-object-based application. The first is to take a series of photos of the object from different angles load the photos into the application and then flip through them like a deck of cards. The second is to take a series of photos assemble them in columns and rows in a single image and then use the application to translate the image inside of a clipped canvas. We ll be using the single-image method. Based on my experience building both types it seems a little snappier it s much easier to set up update and augment and it has fewer moving parts to keep track of. With that in mind let s get started. The first thing we need to talk about is the images. .

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